CN217476838U

CN217476838U - Screen fixing device of PCB printing machine

Info

Publication number: CN217476838U
Application number: CN202221529533.5U
Authority: CN
Inventors: 朱剑戈; 王文彬; 向英鹏
Original assignee: Hangzhou Linan Longfei Electronic Co ltd
Current assignee: Hangzhou Linan Longfei Electronic Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-23
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to the technical field of PCB printing machines, and discloses a screen plate fixing device of a PCB printing machine, which solves the problems that the screen plate needs to be fixed by a plurality of fastening bolts and needs to be operated by a worker for a plurality of times, so the operation is more complicated; the sliding block is of a hollow structure, a bottom plate and a top plate are arranged in the sliding block, positioning columns are symmetrically connected to the bottom plate and sequentially penetrate through the top plate and the sliding block, first springs are symmetrically sleeved on the positioning columns, one first spring is located between the bottom plate and the top plate, the other first spring is located above the top plate, a clamping hole is formed in the top plate, a strip-shaped hole is formed in the top end of the sliding block, and a locking piece matched with the clamping hole is arranged at the edge of the strip-shaped hole; the utility model discloses, the cooperation through locking piece, bottom plate and roof etc. that set up is used, can be quick to otter board body dismouting.

Description

Screen fixing device of PCB printing machine

Technical Field

The utility model belongs to the technical field of the PCB printing machine, specifically be PCB printing machine's otter board fixing device.

Background

PCB printing, also known as circuit board printing, is a new industry developed today, and the rapid development of screen printing has injected vigor into this industry, bringing about a significant revolution to the electronic industry. The current screen printing process can be completely suitable for high-density PCB production; according to the authorized bulletin number: CN207889317U3, entitled "screen fixing mechanism of PCB printer", describes in the specification: the screen fixing mechanism of the PCB printing machine can adapt to the fixation of screens with different sizes, has simple structure and easy adjustment, and when the screen is fixedly arranged on the fixed plate, the screen can be stably fixed on the fixed plate after all fastening bolts are screwed, thereby ensuring the stability of the position of the screen in the printing process; the following drawbacks still exist:

it needs to be fixed the otter board through a plurality of fastening bolt, needs the staff to operate many times, therefore operates comparatively loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a PCB printing machine's otter board fixing device, effectual solution need be fixed the otter board through a plurality of fastening bolt, needs the staff to operate many times, consequently operates comparatively loaded down with trivial details problem.

In order to achieve the above object, the utility model provides a following technical scheme: the screen fixing device of the PCB printing machine comprises guide rails, sliding blocks are symmetrically connected in the guide rails, and a screen body is arranged between the sliding blocks; the sliding block is hollow structure, is equipped with bottom plate and roof in the sliding block, and the symmetric connection has the reference column on the bottom plate, and the reference column runs through roof and sliding block in proper order, and first spring has been cup jointed to the symmetry on the reference column, and one of them first spring is located between bottom plate and the roof, and another first spring is located the top of roof, has seted up the card hole on the roof, and the bar hole has been seted up on the sliding block top, bar hole edge be provided with card hole complex locking piece.

Preferably, the locking piece is including the symmetry setting and the curb plate of being connected with the sliding block, rotates between the curb plate to be connected with eccentric post, is connected with integrative bar shaped plate on the eccentric post, has seted up the pole groove in the eccentric post.

Preferably, the rod groove is internally connected with a clamping rod, the clamping rod is connected with a limiting ring, and a second spring sleeved with the clamping rod is arranged above the limiting ring.

Preferably, the clamping rod is a T-shaped rod, and the radius of the middle part of the rod groove is larger than the radius of the notches at the two ends of the rod groove.

Preferably, a sliding groove is formed in the guide rail, a bidirectional screw rod is rotationally connected in the sliding groove, and rotating blocks are connected to two ends of the bidirectional screw rod.

Preferably, one end of the sliding block is connected with a sliding block, and a screw hole in threaded connection with the bidirectional screw rod is formed in the sliding block.

Preferably, the shape of the sliding groove and the shape of the sliding block are both in a T-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1) in the work, through the matched use of the locking piece, the bottom plate, the top plate and the like, the screen plate body can be fixed only by placing the screen plate body between the two sliding blocks and then rotating the locking piece; when the screen plate body needs to be disassembled, only the clamping rod in the locking piece needs to be pulled, so that the operation is more convenient;

2) the two-way screw rod can drive the two sliding blocks to move in opposite directions through the two-way screw rod, the rotating block, the sliding blocks and the like, so that the two sliding blocks can move in opposite directions, and the screen plate bodies with different sizes can be conveniently installed.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a slider structure according to an embodiment of the present invention;

fig. 3 is a schematic view of the locking member according to the embodiment of the present invention;

fig. 4 is a schematic view of the guide rail structure in the embodiment of the present invention;

in the figure: 1. a guide rail; 101. a chute; 102. a bidirectional screw rod; 103. rotating the block; 2. a slider; 201. a base plate; 202. a top plate; 203. a positioning column; 204. a first spring; 205. a clamping hole; 3. a screen body; 4. a slider; 5. a locking member; 501. a side plate; 502. an eccentric column; 503. a strip plate; 504. a rod groove; 505. a clamping rod; 506. a limiting ring; 507. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 4, the screen fixing device of a PCB printer of the present invention includes a guide rail 1, sliding blocks 2 are symmetrically connected in the guide rail 1, and a screen body 3 is disposed between the sliding blocks 2; the sliding block 2 is of a hollow structure, a bottom plate 201 and a top plate 202 are arranged in the sliding block 2, positioning pillars 203 are symmetrically connected to the bottom plate 201, the positioning pillars 203 sequentially penetrate through the top plate 202 and the sliding block 2, first springs 204 are symmetrically sleeved on the positioning pillars 203, one first spring 204 is located between the bottom plate 201 and the top plate 202, the other first spring 204 is located above the top plate 202, a clamping hole 205 is formed in the top plate 202, a strip-shaped hole is formed in the top end of the sliding block 2, and a locking piece 5 matched with the clamping hole 205 is arranged on the edge of the strip-shaped hole;

the locking piece 5 comprises side plates 501 which are symmetrically arranged and connected with the sliding block 2, an eccentric column 502 is rotatably connected between the side plates 501, an integrated strip-shaped plate 503 is connected on the eccentric column 502, and a rod groove 504 is formed in the eccentric column 502; a clamping rod 505 is inserted in the rod groove 504, a limit ring 506 is connected to the clamping rod 505, and a second spring 507 sleeved with the clamping rod 505 is arranged above the limit ring 506; the clamping rod 505 is a T-shaped rod, and the radius of the middle part of the rod groove 504 is larger than that of the notches at the two ends of the rod groove;

when the screen plate is used, when the screen plate body 3 needs to be fixed, the screen plate body 3 is only required to be placed into the two sliding blocks 2, then the strip-shaped plate 503 is rotated, the strip-shaped plate 503 drives the eccentric column 502 to rotate, the eccentric column 502 rotates and then extrudes the top plate 202, the top plate 202 drives the first spring 204 positioned below to extrude the bottom plate 201, so that the bottom plate 201 extrudes the screen plate body 3 to fix the screen plate body, and when the strip-shaped plate 503 is in a vertical state, the clamping rod 505 enters the clamping hole 205 under the action of the second spring 507 to limit the position and prevent the eccentric column 502 from deviating;

when the screen plate body 3 needs to be detached, the clamping rod 505 only needs to be pulled upwards to be separated from the clamping hole 205, and then the screen plate body 3 can be taken out by rotating the clamping rod, so that the operation is convenient.

In the second embodiment, on the basis of the first embodiment, a sliding groove 101 is formed in the guide rail 1, a bidirectional screw rod 102 is rotationally connected in the sliding groove 101, and two ends of the bidirectional screw rod 102 are both connected with rotating blocks 103; one end of the sliding block 2 is connected with a sliding block 4, and a screw hole in threaded connection with the bidirectional screw rod 102 is formed in the sliding block 4; the shape of the sliding groove 101 and the shape of the sliding block 2 are both T-shaped structures;

when the screen plate bodies 3 with different sizes need to be installed, the two-way screw rod 102 is driven to rotate only through the rotating block 103, the two-way screw rod 102 drives the two sliding blocks 4 to move oppositely in a threaded mode, and therefore the two sliding blocks 2 are driven to move oppositely, and the distance between the two sliding blocks 2 is matched with the size of the corresponding screen plate body 3 conveniently.

Claims

The screen fixing device of the PCB printer comprises a guide rail (1), and is characterized in that: sliding blocks (2) are symmetrically connected in the guide rail (1), and a screen plate body (3) is arranged between the sliding blocks (2); sliding block (2) are hollow structure, be equipped with bottom plate (201) and roof (202) in sliding block (2), symmetrical connection has reference column (203) on bottom plate (201), reference column (203) run through roof (202) and sliding block (2) in proper order, first spring (204) have been cup jointed to symmetry on reference column (203), one of them first spring (204) are located between bottom plate (201) and roof (202), another first spring (204) are located the top of roof (202), card hole (205) have been seted up on roof (202), the bar hole has been seted up on sliding block (2) top, bar hole edge be provided with card hole (205) complex locking piece (5).
2. The screen fixing device of a PCB printer as recited in claim 1, wherein: locking piece (5) are including symmetry setting and curb plate (501) be connected with sliding block (2), rotate between curb plate (501) and be connected with eccentric post (502), are connected with integrative bar (503) on eccentric post (502), have seted up pole groove (504) in eccentric post (502).
3. The screen fixing device of a PCB printer as recited in claim 2, wherein: the rod groove (504) is internally connected with a clamping rod (505), the clamping rod (505) is connected with a limiting ring (506), and a second spring (507) sleeved with the clamping rod (505) is arranged above the limiting ring (506).
4. The screen fixing device of a PCB printer as recited in claim 3, wherein: the clamping rod (505) is a T-shaped rod, and the radius of the middle part of the rod groove (504) is larger than the radius of the notches at the two ends of the rod groove.
5. The screen fixing device of a PCB printer as recited in claim 1, wherein: a sliding groove (101) is formed in the guide rail (1), a bidirectional screw rod (102) is rotationally connected to the sliding groove (101), and rotating blocks (103) are connected to two ends of the bidirectional screw rod (102).
6. The screen fixing device of a PCB printer according to claim 5, wherein: one end of the sliding block (2) is connected with a sliding block (4), and a screw hole in threaded connection with the bidirectional screw rod (102) is formed in the sliding block (4).
7. The screen fixing device of a PCB printer according to claim 6, wherein: the shape of the sliding groove (101) and the shape of the sliding block (2) are both T-shaped structures.